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目的通过分析石家庄辖区内三甲医院放射工作人员个人剂量水平与职业健康检查结果,为河北省放射卫生防护与监督管理工作提供科学依据。方法采用GBZ 207-2008《外照射个人剂量系统性能检验规范》、GB 18871-2002《电离辐射防护与辐射源安全基本标准》GBZ 128-2002《职业性外照射个人监测规范》中的方法,对石家庄市内5家三甲医院的放射工作人员进行个人剂量监测和职业健康检查。结果从事不同岗位的放射工作人员的人均年剂量当量范围为0.83~1.50 m Sv/a,其中普通诊断X射线放射工作人员为0.96 m Sv/a,介入放射工作人员为1.50 m Sv/a,核医学放射工作人员为1.06 m Sv/a,放射治疗工作人员为0.83 m Sv/a。将从事不同岗位的放射工作人员检查结果异常率与年人均有效剂量进行相关性分析,结果显示,检查异常率与相应的年人均有效剂量相关性差异无统计学意义(P>0.05)。结论石家庄市5家三甲医院的放射防护与卫生监管工作较好,采取的有效防护措施能降低工作人员的受照剂量。
Objective To provide a scientific basis for radiation health protection and supervision and management in Hebei Province by analyzing individual radiation dose and occupational health examination results of radiation workers in the top three hospitals in Shijiazhuang. Methods The methods of GBZ 207-2008 “Personal External Exposure Test System for External Exposure” and GB 18871-2002 “Basic Standards for Safety of Ionizing Radiation Protection and Radiation Source” GBZ 128-2002 “Personal External Exposure Monitoring Occupational Exposure” Radiation workers at five top-three hospitals in Shijiazhuang City conduct personal dose monitoring and occupational health checks. Results The annual equivalent dose of radiological staff in different positions ranged from 0.83 to 1.50 mSv / a, including 0.96 mSv / a for general diagnostic X-ray radiographers and 1.50 mSv / a for intervening radiologists Medical radiation staff was 1.06 m Sv / a and radiation treatment staff was 0.83 m Sv / a. Correlation analysis between abnormal rates of examination results and per capita effective doses of radiation workers in different positions showed that there was no significant difference between the abnormal rate of examination and the corresponding effective dose per capita (P> 0.05). Conclusion The radiation protection and hygiene supervision of 5 top three hospitals in Shijiazhuang are better, and the effective protective measures can reduce the dose of workers.